Thermal stability of stealth and de Sitter spacetimes in scalar-tensor gravity

Abstract Stealth solutions of scalar-tensor gravity and less-known de Sitter spaces that generalize them are analyzed regarding their possible role as thermal equilibria at non-zero temperature in the new first-order thermodynamics of scalar-tensor gravity. No stable equilibria are found, further va...

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Bibliographic Details
Main Authors: Serena Giardino, Andrea Giusti, Valerio Faraoni
Format: Article
Language:English
Published: SpringerOpen 2023-07-01
Series:European Physical Journal C: Particles and Fields
Online Access:https://doi.org/10.1140/epjc/s10052-023-11697-3
Description
Summary:Abstract Stealth solutions of scalar-tensor gravity and less-known de Sitter spaces that generalize them are analyzed regarding their possible role as thermal equilibria at non-zero temperature in the new first-order thermodynamics of scalar-tensor gravity. No stable equilibria are found, further validating the special role of general relativity as an equilibrium state in the landscape of gravity theories, seen through the lens of first-order thermodynamics.
ISSN:1434-6052